// 页面缩放
fnViewScale();
function fnViewScale(){
    var web_wrap = $("#web_wrap")[0];
    var sreenWidth = document.body.clientWidth;
    var iScale = sreenWidth/320;

    web_wrap.style.transform = "scale("+iScale+")";
    web_wrap.style.webkitTransform = "scale("+iScale+")";  
}
window.onresize = function(){
    fnViewScale();
}







// 返回上一页
backUpPage();
function backUpPage(){
    var backUpBtn = $(".top_nav_left_btn");

    backUpBtn.click(function(){
        javascript:history.back();
    });
}

